Patents by Inventor Rosemarie Kurzer

Rosemarie Kurzer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • FILTER MEDIUM WITH NON-WOVEN AS SINGLE-LAYER FIBER COMPOSITE AND METHOD FOR PRODUCING SUCH A FILTER MEDIUM
    Publication number: 20200324235
    Abstract: A filter medium for filtration of an air stream includes: a non-woven having a plurality of bicomponent fibers. The non-woven includes a single-layer fiber composite having a first structure of bicomponent fibers and a second structure of continuous bicomponent fibers. The second structure engages with the first structure. In an embodiment, the bicomponent fibers include at least two polymer components. The at least two polymer components of the bicomponent fibers differ in melting point by at least 15 degrees and have a cover-core fiber structure or a side-by-side fiber structure.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 15, 2020
    Inventors: Oliver Staudenmayer, Heiko Schacht, Anhony Hollingsworth, Torsten Gorges, Alexander Kolew, Rosemarie Kurzer, Armin Greiner
  • Filter medium for particulate filtration
    Patent number: 8709138
    Abstract: A filter medium including a carrier layer and a microfiber layer applied thereon is characterized in that, with respect to the aim of providing a filter medium which has a relatively low pressure drop, and at the same time a good fraction separation rate and excellent dust storage capacity, the carrier layer has first fibers, which are designed as endless bicomponent fibers and spunbonded fibers, and the microfiber layer has second fibers, which are designed as endless melt-blown fibers.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: April 29, 2014
    Assignee: Carl Freudenberg KG
    Inventors: Alexandra Lazarevic, Robert Bader, Rosemarie Kurzer, Heinz Reinhardt